'pollen-laden' originates from the combination of 'pollen' and 'laden', where 'pollen' refers to the fine powdery substance produced by flowers, and 'laden' means heavily loaded or weighed down.

'pollen' comes from the Latin word 'pollen', meaning 'fine flour', and 'laden' comes from the Old English 'hladen', meaning 'to load'.

Initially, 'laden' meant 'to load', but in combination with 'pollen', it evolved to describe something heavily covered with pollen.